Means for automatically opening or closing gas-cocks.



Patented Apr. 3, I900. A. G. IIIATHER &. W. W. McCALLUM. MEANS FORAUTOMATICALLY OPENING OR CLOSING GAS COOKS.

(Application filed July 1, 1899.)

(No Model.)

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UNITED STATES PATENT EEIcE,

ALLAN e. MATHER AND WILLIAM WARNER MOOALLUM, or MILWAUKEE, WISCONSIN;SAID MATHER AssIeNoR TO sAID MOCALLUM AND JOHN s. BLAKNEY, OF SAMEPLACE.

MEANS FOR AUTOMATICALLY OPENING R CLOSING GAS-COCKS.

SPECIFICATION forming part of Letters Patent No. 646,446, dated April 3,1900.

Application filed July 1, 1899. Serial No. 722,593. (No model.)

T0 (ZZZ 1071/0711, it m y 00 In the drawings, is the case of a heater,Be it known that we, ALLAN G. LWIATHER' supported on a frame 6. Awater-pipe 7 and WILLIAM WARNER MOOALLUM, of Milleads into and throughthe valve-chamber 8 waukee, in the county of Milwaukee and State andthence into the upper portion of the case 5 of Visconsin, have inventeda new and use- 5, where it is preferably arranged in a series fulImprovement in Means for Automaticof coils 7 and continues therefrom inthe ally Opening or Closing Gas-Cocks, of which pipe '7 to the place ofdischarge. Agas-pipe the following is a description, reference being 9from the gas service system leads to a nozhad to the accompanyingdrawings,which are zle 10 below the coils of water-pipe and dis- Io apart of this specification. charges its gas upwardly through a burner-In connection with a water-service system tube 11 against and through aperforated it is common to provide means for heating plate 12, abovewhich the gas is ignited and water in a pipe forming a part of suchsysburns. The gas-pipe 9 is provided with a rotern, the heated waterbeing adapted for gentatable plug gas-cock 13, which gas-cock is 15 eralhousehold purposes, and this heating of provided with'alaterally-extending arm 14, the water is accomplished by the combustionhaving thereon an adjustable weight 1 5. This of gas, the gas beingsupplied from a burner arm 14 and weight 15 are adapted normallyconnected with a gas-service system, and it is to hold the gas-cock 13in such position as to convenient and desirable to have an apparashutoff the flow of gas through the pipe 9. A 20 tus provided adaptedautomatically to turn small gas-pipe 16, leading from the gas-pipe onand shut off the gas by means of the ac- 9 in front of the cook 13,terminates in the tion of the water in the water system induced case 5,just above the plate 12, and discharges by starting and stopping theflow of the water. gas therefrom constantly, which is lighted Ourinvention relates chiefly to the i111 and burns continuously with a verysmall 2 5 proved valve and its connections in the waflame directly abovethe plate-12 and is adaptter system adapted to be actuated by the flowed toignite the supply of gasthat is discharged of the water and beingactuated thereby to upwardly through the plate 12 from the nozopen agas-cock and to permit of its being zle 10.

closed when the flow of the water acting on the Our improved valve inthe water system,

0, valve ceases. adapted to open and permit the closing of the Weillustrate our improved valve and the gas-cock 13, is located in thepipe 7 and is related apparatus in connection .with so much so arrangedthat water running through the of a water-service system and agas-service pipe passes through the chamber 8 of this system as isdesirable to clearly show our invalve. The valve is convenientlyconstructed 35 vention and its operation. in cylindrical form, one head17 and the cir- The invention consists of the device, its cularperimeter of the valve-chamber being parts and combination of parts, asherein deconstructed integrally and the other head 18 scribed andclaimed, or the equivalents being bolted to the open end of theperimethereof. ter of the cylinder. On the inside 0 the 40 In thedrawings, Figure 1 is an elevation of valve-chamber there is apartition-wall 19, 0 an apparatus, in connection with water andextending longitudinally interiorlyacross the gas systems, embodying ourimproved valve valve-chamber and laterally from one side of auditsconnections. Fig. 2isa central transthe cylinder partially across thechamber. verse section of the same apparatus and im- This partition ispermanent in the cylinder.

5 proved valve and its connections, the section As a continuation ofthis partition 19 across 5 being at a right angle to. the view shown inthe cylinder, dividing the chamber normally Fig. 1. Fig. 3 is a detailof our improved into two compartments, there isahinged leaf valve, thehead or one end of the Valve-cylin- 20, which is pivoted adjacent to theedge of der being removed, exposing interior conthe partition 19, thepivot-pin 21 being pref- ;o struction. erably in the longitudinal axisof the cylin- 10o der. The leaf 20 extends therefrom to the curved outerwall of the cylinder and from end to end of the chamber thereof. Theleaf 20 is preferably provided with an enlarged or laterally-extendedouter edge22, fitted to the interior curved surface of the cylinder andmovable substantially water-tight thereon. The ends of the leaf 20 alsofit substantially water-tight, but movably against the heads of thecylinder. The water-supply pipe 7 enters that compartment 8 of thechamber of the valve that is at the left in Fig. 3, and thence passinginto the compartment 8 is discharged therefrom at the right in Fig. 3through the pipe 7, leading to the coils 7. Opposite the leaf 20 thewall of the curved portion of the cylinder is carried inwardly slightly,as shown at 23 in Fig. 3, forming a surface on this curved wall of thecylinder, against which the leaf fits movably, and this surface extendsaround toward the right or in the direction of the movement of the waterfor a distance toward the discharge-port, and beyond this raised surfacethe wall of the perimeter of the cylinder is cut away, as shown at 24 inFig. 3, so that when the leaf has by the action of the water beencarried around to the cut-away portion of the wall of the cylinder thereis a considerable aperture or space between its outer edge and the wallof the cylinder, so that the water therein can flow freely past thecylinder into the compartment 8 and out through the discharge-pipe. Thepivot-pin 21 is secured rigidly to the leaf 20 and has its hearings inthe heads of the cylinder and extends through the outer head 18 in astufiing-box therefor and on its outer extremity is provided with acrank-arm 25, connected at its outer extremity by a rod 26 to the arm 14medially, the construction being such that the swinging of the leaf 20toward the right in the chamber 8 under the action of the flow of waterthrough the chamber lifts the arm 14 and opens the gas-cock 13, and whenthe flow of water through the chamber is stopped the leaf 20 returns toits normal position (shown in Fig. 3) by gravity, aided to some extentby the backlash of the water in the servicep1pe.

What we claim as our invention is 1. In apparatus for heating water in awater-service system, the combination of a water-service pipe, a chamberin the line of the service-pipe a portion of the wall of which chamberis a segmentally-curved bearingsurface the wall of the chamber being cutaway following the bearing-surface, a leaf pivoted in the chamber at adistance from and opposite said curved bearingsurface, the leaf beingadapted to fit normally movably on said bearing-surface and under themovement of water in the chamber to be swung beyond and free from saidsurface, a gas-supply pipe provided with a burner disposed to heat waterin the water-supply pipe, a cock in the gaspipe and means connectingsaid water-actuated leaf operatively to said gas-pipe cock.

2. In apparatus for heating waterin a water-service system, thecombination of a water-service pipe, a chamber in the line of theservice-pipe a portion of the wall of which chamber is asegmentally-curved bearingsurface, the wall of the chamber being cutaway following the bearing-surface, a leaf pivoted in the chamber at adistance from and opposite said curved bearing-surface, the leaf beingadapted to fit normally movably on said bearing-surface and under themovement of water in the chamber to be swung beyond and free from saidsurface, agas-supply pipe provided with a burner disposed to heat waterin the water-supply pipe, a cock in the gaspipe, a crank-arm on thepivot-pin of the leaf, and means connecting said crank-arm operativelyto the cock in the gas-pipe.

In apparatus for heating water in a water-service system, thecombination of a water-service pipe, a chamber in the line of theservice-pipe a portion of the wall of which chamber is asegmentally-curved bearingsurface the wall of the chamber being cut awayfollowing the bearing-surface, a leaf pivoted in the chamber atadistance from and opposite said curved bearing-surface, the leaf beingadapted to fit normally movably on said bearing-surface and under themovement of water in the chamber to be swung beyond and free from saidsurface, a crank-arm rigid to the leaf, a gas-supply pipe provided witha burner disposed to heat water in the watersupply pipe, a rotatablecock in the gas-supply pipe, a radial arm on the gas-cock and a rodconnecting the crank-arm on the leaf to the radial arm on the gas-cock.

4. In apparatus for heating water in a water-service system, thecombination of a water-service pipe, a chamber in the line of theservice-pipe a portion of the wall of which chamber is asegmentally-curved bearingsurface, the wall of the chamber being cutaway following the bearing-surface, a leaf pivoted in the chamber at adistance from and opposite said curved bearing-surface, the

leaf being adapted to fit normally movably on said bearing-surface andunder the movement of water in the chamber to be swung beyond and freefrom said surface, a crankarm rigid to the leaf, a gas-supply pipeprovided with a burner disposed to heat water in the water-supply pipe,a rotatable cock in the gas-supply pipe, a radial arm on the gascock, adepressing weight on the radial arm, and a rod connecting the crank-armon the leaf to the radial arm on the gas-cock.

In testimony whereof we afiix our signatures in presence of twowitnesses.

ALLAN G. MATHER. W. \VARNER MOCALLUM.

' lVitnesses:

C. T. BENEDICT, A. L. MORSELL.

